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A binary silod(A^(+) B^(-)) has a zine b...

A binary silod`(A^(+) B^(-))` has a zine blende stracture with B inos consititating the lattice and `A^(+)` inos occupyiong `25%` of the terahedral holes. The formula of the solid is

A

AB

B

`A_(2)B`

C

`AB_(2)`

D

`AB_(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
B ions in a unit cell =`8//8+6//2`=4 `A^(+)`ions occupy `25%`of the tetrahedral holes
=`(8times25)/100=2`
Formula is `A_(2)B_(4) or AB_(2)`.
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